Ive just upgraded my Cable connection (virgin media) to 50mbs. I can connect via ethernet to my wireless modem and I do indeed get 50mb/s. However wirelessly i get about 26mb. The Airport extreme card installed says it N compatible (according to system profiler).... and my d-link wireless router says that its connected via 802.11 n.

I just cant get it up to 50mbs. Its not a big deal as I can connect via ethernet...but its annying me as It should work...shouldnt it.

Do I change channels on the router...or the Imac? I guess both but does one follow the other?

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I believe the router. Do some reading about channels, there are some easy to read manuals on which channels are most likely to interference-free. But off the top of my head, its the middle channel, and the two channels at either end - so, again off the top of my head - channels 1, 6 and 11. But if I'm wrong about the details it'll be something similar.

If you're in North America there's this link to test your actual speeds.

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